This Tariff Concession Order (TC 0516645) declares certain parts for walking beam furnaces (burner downtake pipes/hot‑air ducts; brake discs and couplings) classified at 8417.90.00 are goods to which Schedule 4, Part III item 50 of the Customs Tariff Act 1995 applies, effective 25 Nov 2005 (s.269P; Table). Importers are the economic actors affected (they pay lower or no customs duty under that Schedule item); the delegate of the CEO issued the Order and it continues until revoked under ss.269SC–269SD or a specified end date (Table).